El Niño Scorecard
How well did forecasters do in predicting El Niño's effects last year? Check this scorecard that matches projections with what actually happened and tabs the results to get a sense of just how good the forecasters were. (Grades 6-8, 9-12)

Anatomy of El Niño
Find out what El Niño is, how it begins, what drives it and more in this section that also explores how the world's weather works. And play a Shockwave game that let's you be the weather maker. (Shockwave plug-in required.) (Grades 3-5, 6-8, 9-12)

Chasing El Niño
Follow up on the results of NOVA Online's winter 1997 chase of El Niño from inside a storm; in labs where scientists saw a picture of El Niño emerging from their data for the first time; and aboard a ship that tracked El Niño in real-time. (Grades 6-8, 9-12)

El Niño's Reach
Learn how El Niño affected weather worldwide, when it has occurred in the past, and how scientists can use living things—like tree rings and coral cores—to "see" the phenomenon's influence back in time. (Grades 3-5, 6-8, 9-12)

El Niño Dispatches
Read the accounts of our correspondent and guest meteorologists who reported on El Niño as it was happening. (Grades 6-8, 9-12)